Hi devs I've got my Linux box upgraded to a recent version of Ubuntu, so I'm no longer stuck on gcc version. But I can't build either. Something strange with /lib/cpp fails sanity check. The log is below. Can anyone help? I'm a bit stalled. This call to "make" follows the same failure when I typed "sh validate -fast". But by carrying on from where it got stuck the log is way shorter. Thanks Simon simonpj@cam-05-unx:~/5builds/HEAD$ make ===--- building phase 0 make --no-print-directory -f ghc.mk phase=0 phase_0_builds make[1]: Nothing to be done for 'phase_0_builds'. ===--- building phase 1 make --no-print-directory -f ghc.mk phase=1 phase_1_builds make[1]: Nothing to be done for 'phase_1_builds'. ===--- building final phase make --no-print-directory -f ghc.mk phase=final all rts/ghc.mk:547: rts/dist/build/.depend-v-dyn-l-debug-thr-thr_debug-thr_l-debug_dyn-thr_dyn-thr_debug_dyn-l_dyn-thr_l_dyn.c_asm: No such file or directory libraries/ghci/ghc.mk:4: libraries/ghci/dist-install/build/.depend-v-dyn.haskell: No such file or directory "rm" -f libffi/stamp.ffi.static.configure "rm" -f libffi/stamp.ffi.static.build "rm" -f libffi/stamp.ffi.static.install "rm" -f libffi/stamp.ffi.static-shared.configure "rm" -f libffi/stamp.ffi.static-shared.build "rm" -f libffi/stamp.ffi.static-shared.install "rm" -rf libffi/build cat libffi-tarballs/libffi*.tar.gz | /bin/gzip -d | { cd libffi && /bin/tar -xf - ; } mv libffi/libffi-* libffi/build cp "/home/simonpj/5builds/HEAD/config.guess" libffi/build/config.guess cp "/home/simonpj/5builds/HEAD/config.sub" libffi/build/config.sub chmod +x libffi/ln # We need to use -MMD rather than -MD, as otherwise we get paths # like c:/... in the dependency files on Windows, and the extra # colons break make mv libffi/build/Makefile.in libffi/build/Makefile.in.orig sed "s/-MD/-MMD/" < libffi/build/Makefile.in.orig > libffi/build/Makefile.in # We attempt to specify the installation directory below with --libdir, # but libffi installs into 'toolexeclibdir' instead, which may differ # on systems where gcc has multilib support. Force libffi to use libdir. # (https://sourceware.org/ml/libffi-discuss/2014/msg00016.html) mv libffi/build/Makefile.in libffi/build/Makefile.in.orig sed 's:@toolexeclibdir@:$(libdir):g' < libffi/build/Makefile.in.orig > libffi/build/Makefile.in # install-sh is used when /usr/bin/install is missing; ensure its # path in libffi's Makefile is correct. See GHC #11109. mv libffi/build/Makefile.in libffi/build/Makefile.in.orig sed 's|@INSTALL@|$(subst ../install-sh,/home/simonpj/5builds/HEAD/install-sh,@INSTALL@)|g' < libffi/build/Makefile.in.orig > libffi/build/Makefile.in cd libffi && \ cd build && \ CC=gcc \ CXX=gcc \ LD=ld.gold \ AR=ar \ NM=nm \ RANLIB=ranlib \ CFLAGS="-Wall -Werror -fno-stack-protector -w" \ LDFLAGS=" -w" \ "/bin/bash" ./configure \ --prefix=/home/simonpj/5builds/HEAD/libffi/build/inst \ --libdir=/home/simonpj/5builds/HEAD/libffi/build/inst/lib \ --disable-docs \ --enable-static=yes \ --enable-shared=yes \ --host=x86_64-unknown-linux checking build system type... x86_64-pc-linux-gnu checking host system type... x86_64-unknown-linux-gnu checking target system type... x86_64-unknown-linux-gnu continue configure in default builddir "./x86_64-unknown-linux-gnu" ....exec /bin/sh .././configure "--srcdir=.." "--enable-builddir=x86_64-unknown-linux-gnu" "linux gnu" checking build system type... x86_64-pc-linux-gnu checking host system type... x86_64-unknown-linux-gnu checking target system type... x86_64-unknown-linux-gnu checking for gsed... sed checking for a BSD-compatible install... /usr/bin/install -c checking whether build environment is sane... yes checking for x86_64-unknown-linux-strip... no checking for strip... strip checking for a thread-safe mkdir -p... /bin/mkdir -p checking for gawk... gawk checking whether make sets $(MAKE)... yes checking whether make supports nested variables... yes checking for x86_64-unknown-linux-gcc... gcc checking whether the C compiler works... yes checking for C compiler default output file name... a.out checking for suffix of executables... checking whether we are cross compiling... no checking for suffix of object files... o checking whether we are using the GNU C compiler... yes checking whether gcc accepts -g... yes checking for gcc option to accept ISO C89... none needed checking whether gcc understands -c and -o together... yes checking for style of include used by make... GNU checking dependency style of gcc... gcc3 checking whether we are using the GNU C++ compiler... no checking whether gcc accepts -g... no checking dependency style of gcc... gcc3 checking dependency style of gcc... gcc3 checking how to print strings... printf checking for a sed that does not truncate output... /bin/sed checking for grep that handles long lines and -e... /bin/grep checking for egrep... /bin/grep -E checking for fgrep... /bin/grep -F checking for ld used by gcc... ld.gold checking if the linker (ld.gold) is GNU ld... yes checking for BSD- or MS-compatible name lister (nm)... nm checking the name lister (nm) interface... BSD nm checking whether ln -s works... yes checking the maximum length of command line arguments... 1635000 checking how to convert x86_64-pc-linux-gnu file names to x86_64-unknown-linux-gnu format... func_convert_file_noop checking how to convert x86_64-pc-linux-gnu file names to toolchain format... func_convert_file_noop checking for ld.gold option to reload object files... -r checking for x86_64-unknown-linux-objdump... no checking for objdump... objdump checking how to recognize dependent libraries... pass_all checking for x86_64-unknown-linux-dlltool... no checking for dlltool... no checking how to associate runtime and link libraries... printf %s\n checking for x86_64-unknown-linux-ar... ar checking for archiver @FILE support... @ checking for x86_64-unknown-linux-strip... strip checking for x86_64-unknown-linux-ranlib... ranlib checking command to parse nm output from gcc object... ok checking for sysroot... no checking for a working dd... /bin/dd checking how to truncate binary pipes... /bin/dd bs=4096 count=1 checking for x86_64-unknown-linux-mt... no checking for mt... mt checking if mt is a manifest tool... no checking how to run the C preprocessor... gcc -E checking for ANSI C header files... yes checking for sys/types.h... yes checking for sys/stat.h... yes checking for stdlib.h... yes checking for string.h... yes checking for memory.h... yes checking for strings.h... yes checking for inttypes.h... yes checking for stdint.h... yes checking for unistd.h... yes checking for dlfcn.h... yes checking for objdir... .libs checking if gcc supports -fno-rtti -fno-exceptions... yes checking for gcc option to produce PIC... -fPIC -DPIC checking if gcc PIC flag -fPIC -DPIC works... yes checking if gcc static flag -static works... yes checking if gcc supports -c -o file.o... yes checking if gcc supports -c -o file.o... (cached) yes checking whether the gcc linker (ld.gold -m elf_x86_64) supports shared libraries... yes checking whether -lc should be explicitly linked in... no checking dynamic linker characteristics... GNU/Linux ld.so checking how to hardcode library paths into programs... immediate checking whether stripping libraries is possible... yes checking if libtool supports shared libraries... yes checking whether to build shared libraries... yes checking whether to build static libraries... yes checking how to run the C++ preprocessor... /lib/cpp configure: error: in `/home/simonpj/5builds/HEAD/libffi/build/x86_64-unknown-linux-gnu': configure: error: C++ preprocessor "/lib/cpp" fails sanity check See `config.log' for more details libffi/ghc.mk:47: recipe for target 'libffi/stamp.ffi.static-shared.configure' failed make[1]: *** [libffi/stamp.ffi.static-shared.configure] Error 1 Makefile:122: recipe for target 'all' failed make: *** [all] Error 2